Abstract:In the design of road engineering, it is a new task for the engineering designers not only to meet the needs of urban construction, but also to retain the memories of homesickness. Combined with the engineering design of retaining ancient tree in the Tuanfei Road Project in Hefei, the four-in-one engineering design scheme to protect the ancient tree is systematically introduced from the aspects of road alignment design, cross section design, longitudinal section design and roadbed design. The feasibility of the scheme is verified. A certain guiding significance is provided for the design of this kind of projects in the future.